Is there some indexing that needs to be done, or something that needs to be done to the package? I can find the version here, but a build does not work still:

dart pub get
Resolving dependencies...
Error on line 7, column 11 of pubspec.yaml: A dependency specification must be a string or a mapping.
  ╷
7 │   antlr4: 4.10
  │           ^^^^
  ╵

When I add single quotes around 4.10 (as I do not know the correct form of specifying the dependency for the .yaml file--and the error message from dart says that it must be a string or ...--GFC give an error message that is correct!), then do a build, it gives this (see error after dart pub get):

java -jar /mnt/c/Users/Kenne/Documents/GitHub/grammars-v4-i2572-p2/antlr4-4.10-complete.jar -encoding utf-8 -Dlanguage=Dart  abbLexer.g4
java -jar /mnt/c/Users/Kenne/Documents/GitHub/grammars-v4-i2572-p2/antlr4-4.10-complete.jar -encoding utf-8 -Dlanguage=Dart  abbParser.g4
dart pub get
Resolving dependencies...
Error on line 7, column 11 of pubspec.yaml: Invalid version constraint: Could not parse version "4.10". Unknown text at "4.10".
  ╷
7 │   antlr4: '4.10'
  │           ^^^^^^
  ╵
make: *** [makefile:11: classes] Error 65

name: cli
description: A sample command-line application.
environment:
  sdk: '>=2.12.0 <3.0.0'
dependencies:
  antlr4: '4.10'
dev_dependencies:
  pedantic: ^1.9.0
  test: ^1.14.4

The dart pub get works for old Antlr 4.9.3 but not 4.10.

Antlr 4.10 Dart runtime package missing in Pub.dev #3654

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